Anastomosing hemangioma: A case report of a benign tumor often misdiagnosed as a malignant epithelioid angiosarcoma

Nada Shaker; Ankush Patel; Gary Tozbikian; Anil Parwani

doi:10.1016/j.eucr.2022.102023

Anastomosing hemangioma: A case report of a benign tumor often misdiagnosed as a malignant epithelioid angiosarcoma

Urol Case Rep. 2022 Feb 2:42:102023. doi: 10.1016/j.eucr.2022.102023. eCollection 2022 May.

Authors

Nada Shaker¹, Ankush Patel², Gary Tozbikian³, Anil Parwani⁴

Affiliations

¹ PGY-1, Department of Pathology, The Ohio State University Wexner Medical Center, Doan Hall, 410 W. 10th Ave, Columbus, OH, 43210, USA.
² Department of Pathology, The Ohio State University Wexner Medical Center, Doan Hall, 410 W. 10th Ave, Columbus, OH, 43210, USA.
³ The Ohio State University Wexner Medical Center, E414 Doan Hall, 410 W. 10th Ave, Columbus, OH, 43210, USA.
⁴ Cooperative Human Tissue Network (CHTN) Midwestern Division Wexner Medical Center, Department of Pathology, The Ohio State University, E409 Doan Hall, 410 West 10th Ave, Columbus, OH, 43210, USA.

Abstract

Anastomosing hemangioma (AH), a rare benign genitourinary tract hemangioma is subject to frequent misdiagnosis due to its rarity and clinical, histological, and immunohistochemical similarities it shares with several diagnoses, including well-differentiated angiosarcoma (AS). This is particularly true of angiosarcoma, nearly identical to AH when presented in tissue samples of limited size. Lack of specific clinical and radiologic manifestations on initial preoperative assessment, coupled with limited diagnostic experience or awareness, can lead to misinterpretation of this entity, potentially leading to unnecessary clinical management. We present an initial misdiagnosis of AS which, upon review of the entire lesion, was identified as AH.

Publication types

Case Reports